JPS6210533Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gasket attachment/detachment device for a gasket disposed between a pair of fitting bodies that fit into each other in a joint.

The one shown in Figure 1 is an autoclave (vulcanizing can).
It has a can body 1 and a lid 2, and an Adamson joint 3 is disposed between both 1 and 2, and a pair of fitting bodies 3 of the joint 3 that fit into each other.
Among A and 3B, one 3A is attached to the can body 1, and the other 3A is attached to the can body 1.
B is attached to the lid 2, respectively. Also the second
As shown in the figure, a gasket 5 is inserted movably within a certain range into an annular groove 4 formed on the end surface of one fitting body 3A, and the annular groove 4 is inserted through a pressure fluid inlet 6 communicating with the annular groove 4. For example, steam is injected as a pressure fluid into the fitting body 3B, thereby pressing the gasket 5 against the end face of the other fitting body 3B for sealing.

Conventionally, there is no means for separating the gasket 5 pressed against the end face of the other fitting body 3B from the other fitting body 3B, so when opening the joint, the head of the gasket 5 has to be "rubbed". This gasket 5 is damaged. After opening the joint, the worker used a wooden hammer to open the gasket 5.
However, this method requires manpower, and in the case of large diameters, it is not safe and reliable to install, and there are problems such as a long operation time. be.

Therefore, the present invention provides a gasket attachment/detachment device that solves such problems. A gasket with a bifurcated tip section is inserted into the annular groove so as to be movable within a certain range, and the gasket tip in the annular groove is inserted into one of the fitting bodies. A pressurized fluid inlet is provided for supplying pressure fluid to the two-pronged partial space to press the base end face of the gasket against the end face of the other fitted body, and a plurality of pressure fluid inlets are provided at appropriate intervals in the circumferential direction at the location of the other fitted body facing the gasket. Holes are formed through the gasket, and a sliding body is slidably inserted into each hole, and a separating means is provided for separating the base end surface of the gasket from the other fitting body by pressing each sliding body against the gasket. This not only provides good sealing between the two fitting bodies, but also makes it easier to separate the gasket when the joint is opened, and saves the effort of manually returning it to the annular groove.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. 10 is an air vent communicating with the annular groove 4, and 11 is a drain vent. Reference numeral 12 denotes a plurality (12 pieces in this embodiment) formed through the other fitting body 3B at regular intervals in the circumferential direction at locations on the other fitting body 3B facing the gasket 5 inserted into the annular groove 4.
The hole is composed of a small diameter part 12A and a large diameter part 12B. 13 is a plug screwed into the female thread of the opening of the large diameter part 12B, and the large diameter part 12 is located in the center.
A communication hole 14 communicating with B is formed. 15 is a pressure fluid (steam, gas, etc.) supply pipe connected to the communication hole 14, and 16 is a lock nut. 17 is a sliding body, which includes a piston 17A slidably disposed within the large diameter portion 12B, and a rod 17B fixed to the center of the piston 17A.
It consists of a protrusion 17C fixed to the tip of the rod 17B and slidably disposed within the small diameter portion 12A. 18 is a spring that biases the piston 17A in a direction away from one fitting body 3A.

The distal end of the gasket 5 is formed to have a bifurcated cross section, and a pressure fluid inlet 6 is formed in one of the fitting bodies 3A so as to open into the bifurcated space. Further, the shape of the annular groove 4 has an inclined side surface so that the bottom part widens, and a gasket 5 is attached to this inclined side surface.
The side surfaces of the forked portions can be pressed together.

The procedure for attaching and detaching the gasket 5 will be explained based on the above configuration. First, when sealing is performed, the air vent port 10 and the drain vent port 1 are sealed with the protrusion 17C located within the small diameter portion 12A.
Close 1. Next, a pressure fluid such as steam is supplied from the pressure fluid inlet 6 to the two-pronged space at the tip of the gasket 5 in the annular groove 4. Then, the gasket 5 shown by the imaginary line in FIG. 4 is pressed toward the other fitting body 3B, and is pressed against the end surface of the other fitting body 3B as shown by the solid line in FIG. It is pressed against the inclined side surface of the annular groove 4 and sealed.

Next, when the gasket 5 is to be separated from the other fitting body 3B, the pressure fluid inlet 6 is closed and the air vent 10 is opened to release the back pressure of the gasket 5. Next, the large diameter portion 12 is supplied via the supply pipe 15.
Pressure fluid may be supplied into B. As a result, the piston 17A shown in solid line in FIG. is separated from the other fitting body 3B and fits into the annular groove 4. After that, when the supply of pressure fluid from the pipe 15 is stopped, the projection 17C is pushed into the small diameter portion 1 by the urging force of the spring 18 via the piston 17A and the rod 17B.
2A.

As described above, according to the gasket attachment/detachment device of the present invention, it is possible to press the gasket against the end face of the other fitting body and the side surface of the annular groove using the pressure fluid from the pressure fluid inlet, and to perform good sealing. In particular, when the joint is opened, by pressing each sliding body against the gasket using the spacing means, the gasket can be easily separated from the end face of the other fitting body and accommodated in the annular groove. Therefore, there is no need to "scrape" the head of the gasket when opening the joint, and the gasket can be placed in the annular groove without the need for human hands, resulting in excellent safety and installation reliability, and short operating time. It is something that can be done.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the autoclave.
Figure 2 is a cross-sectional view of the joint, Figures 3 and 4.
The drawings show an embodiment of the present invention, FIG. 3 is a front view of the joint, and FIG. 4 is a view taken along the - arrow in FIG. 3. 3... Adamson joint, 3A, 3B... fitting body, 4... annular groove, 5... gasket, 6... pressure fluid inlet, 10... air vent, 11... drain vent, 12... hole , 15...Pressure fluid supply pipe, 17...Sliding body, 17C...Protrusion.

Claims (1)

[Scope of utility model registration request] In a joint consisting of a pair of fitting bodies that fit into each other, an annular groove with a wide base is formed on the end face of one of the fitting bodies, and a gasket with a fork-shaped tip section is inserted within a certain range within this annular groove. A pressurized fluid inlet is movably inserted into one of the fitting bodies and supplies pressurized fluid to the two-pronged space at the distal end of the gasket in the annular groove to press the base end surface of the gasket against the end surface of the other fitting body. A plurality of holes are formed through the gasket at appropriate intervals in the circumferential direction at a location of the other fitting body facing the gasket, and a sliding body is slidably inserted into each of the holes, and each sliding body is attached to the gasket. A gasket attachment/detachment device comprising a separating means for separating the base end face of the gasket from the other fitting body by pressing the gasket.